New research suggests there’s wide variation in the risk that unmanned aircraft pose to people on the ground.
Daily Archives: September 19, 2017
227 posts
Whispering gallery mode resonators rely on a phenomenon similar to an effect observed in circular galleries, and the same phenomenon applies to light. When light is stored in ring-shaped or spherical active resonators, the waves superimpose in such a way that it can result in laser light. Investigators now report […]
A Florida college chancellor was abruptly forced out Monday after appearing to have always been on campus before Hurricane Irma to check on students, when she actually had fled the state. As the historic storm loomed, Sophia Wisniewska, the regional chancellor of the University of South Florida St. Petersburg, sent […]
A deadly amphibian disease called severe Perkinsea infections, or SPI, is the cause of many large-scale frog die-offs in the United States, according to a new study.
LONDON — SpaceX does not want the U.S. Federal Communications Commission to exclude its future low-Earth orbit constellation as a potential Connect America Fund award recipient because of the way the agency classifies communications satellites. While giving no new details on the launch company’s proposed satellite broadband constellation, SpaceX argues […]
The quake hit five miles southeast of Atencingo in the state of Puebla at a depth of 32 miles today, Tuesday September 19. It shook the capitalof Mexico on the anniversary of the 1985 earthquake, which cost thousands of lives and destroyed buildings across the capital. The U.S. Geological Survey […]
NATIONAL HARBOR, Md. – With both launch costs and payload size going down, it will be easier for the U.S. Air Force to deploy the right kinds of sensors and systems to fight future space wars that will depend more on information and networking, said Gen. David Goldfein, Air Force chief […]
Toggling Do Not Disturb While Driving on and off is easy — once you add it to Control Center. Screenshot by Rick Broida/CNET Texting while driving is deadly. Everyone knows this, yet few drivers can resist the siren song of a newly arrived message. Too bad smartphones aren’t smart enough […]